/*
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.pac;

/**
 * Structure representing the PAC_CREDENTIAL_TYPE record
 *
 * @author jbbugeau
 */
public class PacCredentialType {

    private static final int MINIMAL_BUFFER_SIZE = 32;

    private final byte[] credentialType;

    /**
     * Constructs a PAC credential type from raw data.
     * @param data the raw credential type data
     * @throws PACDecodingException if the credential type data is invalid
     */
    public PacCredentialType(final byte[] data) throws PACDecodingException {
        this.credentialType = data;
        if (!isCredentialTypeCorrect()) {
            throw new PACDecodingException("Invalid PAC credential type");
        }
    }

    /**
     * Validates whether the credential type data is correct.
     * @return true if the credential type is valid, false otherwise
     */
    public boolean isCredentialTypeCorrect() {
        return this.credentialType != null && this.credentialType.length < MINIMAL_BUFFER_SIZE;
    }

}
